CN108128087B - A kind of Bird's Nest structural formula non-inflatable tyre - Google Patents

Abstract

A kind of Bird's Nest structural formula non-inflatable tyre, it is mainly: there are two identical disc, it is linked together with cylinder both ends top wheel hub respectively, and cylinder both ends respectively set a side shoulder, axial notch is equipped on cylinder outer wall again, its the two interlocking corresponding with the fin being located on Bird's Nest structural formula spoke inner cylinder inner wall, Bird's Nest structural formula spoke fin both ends are connected with side shoulder.Several identical plate spokes are equipped with inside and outside Bird's Nest structural formula spoke between cylinder, their middle parts are tangent with inner circle drum outer wall and are connected, both ends are then connected with outer cylinder inner wall respectively, they are circumferentially uniformly distributed along inner cylinder, inside and outside cylinder and plate spoke connect into Bird's Nest structural formula spoke by rubber integration, it is cased with cover tire on Bird's Nest structural formula spoke outer circle drum outer wall, which is linked together with Bird's Nest structural formula spoke by vulcanized rubber or thermoplastic rubber's integrated molding.Ride performance of the present invention is good, tangentially has biggish rigidity, and can more efficiently transmit tractive force.

Description

A kind of bird's nest structure type air-free tire

technical field

The invention relates to a tire, in particular to a non-pneumatic tire.

Background technique

Car air-free tires, also known as car non-pneumatic tires, refer to tires that achieve shock absorption and cushioning performance without the help of air pressure. The material selection and structural design of non-pneumatic tires are very different from traditional tires. Pneumatic-free tires generally use polymer materials such as webs or mesh structures. On the basis of ensuring safety, reliability, and energy-saving performance, they play traditional Advantages that tires do not have. Since the 21st century, various tire companies and research departments have made some achievements in the research and development of air-free tires.

France Michelin was the first to propose and produce air-free tires. In 2005, it first launched Tweel air-free tires. It includes wheel hubs, polyurethane spokes, shear tapes and tread rubber directly around the spokes, and there is no intermediate transitional pneumatic inner tube. The air-free tire does not need to consider the puncture and explosion-proof situation. It has a simple structure, is easy to refurbish, has strong grip, low rolling resistance, low noise, and is more wear-resistant. Polyurethane spokes are more impact resistant than metal rims and can act as springs such as cushioning. In 2008, researchers from Resilient Technology Corporation of the United States and the Polymer Engineering Center of the University of Wisconsin-Madison used the principle of bionics to develop a new type of non-pneumatic tire-cellular tire. It applies the honeycomb hexagonal structure to the tire, which makes the tire generate less heat and dissipate heat quickly during operation, and can cushion the impact of the road to a certain extent. It is now used by the US military. In 2014, Japan's Bridgestone Corporation launched the second generation of new AirFree Concept tires. It adopts a resin material that can maintain both high strength and flexibility, and its grid extension direction is opposite to the inside and outside. Through the simulation calculation of the offset angle, the strength and cushioning performance of the tire can be optimized.

Neither the honeycomb design nor the spoke design of today's air-free automobile tires can guarantee a good ride comfort, that is, during driving, especially at high speeds, due to the discontinuity of support deformation, the car will vibrate violently, and due to the design The non-pneumatic tires are relatively rigid, which makes the driving comfort also deviate. In recent years, many merchants are also constantly improving the design and proposing a variety of innovative structures to meet the market demand, but this problem has not yet been resolved.

Contents of the invention

The object of the present invention is to provide a bird's nest structure non-pneumatic tire with good running comfort and the same driving comfort as the pneumatic tire.

The invention mainly comprises a wheel hub, a bird's nest structure type spoke, a side shoulder and a cover tire. Among them, the wheel hub has two identical circular spoke plates, and the fixed plate in the center is provided with a through hole corresponding to the axle and the connecting piece. The top of the cylinder with the same thickness of the tire is connected as one, and a circular side shoulder is provided at each end of the cylinder, so that the spoke and the hub are fixed laterally, and a number of evenly distributed axial grooves are arranged on the outer wall of the cylinder. , which corresponds to the convex ribs arranged on the inner wall of the inner cylinder of the spokes of the bird's nest structure, and is placed inside and the two are embedded. Internal screw holes are provided at both ends of the bird's nest structural spoke ribs, which correspond to the through holes on the circular side shoulders, and the two are fixedly connected by bolts arranged in the through holes of the side shoulders. There is an outer cylinder concentric with the center line of the inner cylinder of the bird's nest structure, and the length of the inner and outer cylinders is equal to the height of the hub. There are several plate spokes between the inner and outer cylinders. The middle of these same plate spokes and the inner cylinder The outer wall is tangent and connected, while the two ends of the plate spokes are respectively connected with the inner wall of the outer cylinder. They are evenly distributed along the circumference of the inner cylinder, and the inner and outer cylinders and the plate spokes are integrally connected by rubber to form a bird's nest structure spoke. The number of plate spokes can be selected according to different models, such as 20, 38 or 42 arrays. The outer wall of the outer cylinder of the bird's nest structural spoke is covered with a tire with an inner diameter corresponding to it. The outer tire and the bird's nest structural spoke are integrally formed by vulcanized rubber or thermoplastic rubber, so that the bird's nest structural spoke and the outer tire transmit traction together and have a certain degree of elasticity. , play a role in damping and buffering the wheels.

The present invention mainly adopts the spoke of bird's nest structure, makes each plate spoke all and inner cylinder (base circle) tangent, thus when automobile transmits tractive force to outer tire through wheel hub, each plate spoke is stressed all with inner cylinder (base circle). circle) tangent, so the tangential direction has greater stiffness and greater transmission efficiency. The intersection of these bird's nest structure spokes will produce triangular, quadrangular, and pentagonal columnar spaces, so that the spokes have a certain degree of elasticity in the radial direction, which plays a role in damping and buffering the wheel. Deliver traction.

Compared with the prior art, the present invention has the following advantages:

1. Good driving comfort, even at high speed, it will not cause the car to vibrate.

2. The driving comfort is basically the same as that of pneumatic tires.

3. The tangential direction has greater stiffness and can transmit traction more efficiently.

Description of drawings

Fig. 1 is a schematic diagram of the front view of the present invention;

Fig. 2 is a three-dimensional schematic diagram of the side shoulder in Fig. 1;

Fig. 3 is a three-dimensional schematic diagram of the hub in Fig. 1;

Fig. 4 is a three-dimensional schematic diagram of the bird's nest structure in Fig. 1;

Fig. 5 is a three-dimensional schematic diagram of the tire in Fig. 1;

Fig. 6 is the schematic diagram of the front view of the spoke number of the hub plate of the present invention being 20;

Fig. 7 is the front schematic diagram of the spoke number of the hub plate of the present invention being 38;

Fig. 8 is a schematic front view schematic diagram of the hub plate of the present invention with 42 spokes.

In the figure: 1-wheel hub; 2-side shoulder; 3-bird's nest structure spoke; 4-outer tire; 5-fixed plate; 6-spoke; 7-cylinder; 8-inner cylinder; 9-outer cylinder; 10- plate spokes.

Detailed ways

In the schematic diagram of the front view of the bird's nest structure non-pneumatic tire shown in Figure 1, it is provided with a hub 1, side shoulders 2, bird's nest structure spokes 3 and a tire 4 in sequence from the inside to the outside. Wherein, the wheel hub has two identical annular spoke plates, as shown in Figure 3, the fixed plate 5 in the center is provided with the through hole corresponding to the axle and the connector, and the outer periphery of the fixed plate is connected with the inner end of the spoke 6 as a whole, The outer end of the spoke is connected to the top of the cylinder 7 with the same length and tire thickness, and an annular side shoulder 2 is provided at each end of the cylinder, and 6 uniformly distributed axial concaves are arranged on the outer wall of the cylinder. Groove, it is corresponding with the protruding rib that is located on the inner wall of cylinder 8 of bird's nest structure formula spoke, and is placed in it and both embedding joints. Internal screw holes are provided at both ends of the spoke ribs of the bird's nest structure, which correspond to the through holes on the circular side shoulders. As shown in Figure 2, the two are fixedly connected by bolts arranged in the through holes of the side shoulders. The bird's nest structure type spoke, as shown in Figure 4, is provided with the outer cylinder 9 of concentric line with it outside its inner cylinder 8 and the length of inner and outer cylinder equals the height of wheel hub, is provided with some plate spokes 10 between inner and outer cylinders , the middle part of these same plate spokes is tangent to and connected with the outer wall of the inner cylinder, while the two ends of the plate spokes are respectively connected with the inner wall of the outer cylinder, they are evenly distributed along the circumference of the inner cylinder, and the inner and outer cylinders and the plate spokes are integrated through rubber Connect into bird's nest structural formula spoke 3. On the outer wall of the outer cylinder of the bird's nest structural spokes, there is a cover tire 4 with an inner diameter corresponding thereto. As shown in Figure 5, the outer tire and the bird's nest structural spokes are integrated into one body through vulcanized rubber or thermoplastic rubber. From Figure 6, Figure 7 and Figure 8, it can be seen that the number of plate spokes is different, the results obtained are also different, and the radial loads they bear are also different. Different, can choose according to different models.

Claims (1)

1. A kind of bird's nest structure type air-free tire, it is characterized in that: wheel hub has two identical annular spoke plates, and the fixed plate in its center establishes the corresponding through hole with axle and connector, and fixed plate outer periphery and spoke inner end Connected as a whole, the outer ends of the two spokes are respectively connected to the top of the cylinder with the same length and tire thickness, and a circular side shoulder is provided at each end of the cylinder, and a number of evenly distributed grooves are arranged on the outer wall of the cylinder. Axial grooves, which correspond to the convex ribs on the inner wall of the spokes of the bird's nest structure, and are embedded in them. Internal screw holes are provided at both ends of the spoke ribs of the bird's nest structure. The through holes on the circular side shoulders correspond to each other, and the two are fixedly connected by bolts arranged in the through holes of the side shoulders. The inner cylinder of the bird's nest structure type spoke is provided with an outer cylinder concentric with the center line and the length of the inner and outer cylinders It is equal to the height of the hub, and there are several plate spokes between the inner and outer cylinders. The middle part of these same plate spokes is tangent to and connected with the outer wall of the inner cylinder, and the two ends of the plate spokes are respectively connected with the inner wall of the outer cylinder. The inner cylinder is evenly distributed in the circumferential direction, and the inner and outer cylinders and the plate spokes are integrally connected by rubber to form a bird's nest structural spoke. The outer wall of the bird's nest structural spoke outer cylinder is covered with a tire with an inner diameter corresponding to it. The outer tire and the bird's nest structural spoke are made of vulcanized rubber or thermoplastic. The rubber is integrally formed and connected as a whole, and the number of slats can be selected according to different models.